Professional digital multimeter with UT139S UNI-T test leads The UT139 series are CAT III 600V digital multimeters designed for electricians. Its NCV function can effectively control the electrical state by measuring the EM field intensity. The new UT139E/S models include special features such as LoZ (ACV) to measure "ghost" voltage. The integrated 31-segment analog bar also offers electricians a better visual representation of measurement results. UT139S is built with black EBTN display and is a perfect meter for working in dark environments. Brand: UNI-T EAN code: 6935750513965 Supplier code: UT139S MAX/MIN/REL mode Data lock, LED backlight, automatic shutdown Full range protection (600V) RMS values NCV Selectable automatic/manual intervals Specifications Range UT139S DC voltage (V) 600V ±(0.5%+2) AC voltage (V) 600V ±(0.8%+3) DC current (A) 10A ±(0.7%+2) AC current (A) 10A ±(1%+3) Resistance (Ω) 20MΩ  40MΩ  60MΩ ±(0.8%+2) Capacity (F) 99.99mF ±(4%+5) Frequency (Hz) 10Hz~10MHz ±(0.1%+4) Temperature (°C) -40°C~1000°C ±(1%+4) Temperature (°F) -40°F~1832°F ±(1.5%+5) Features Display count  6000 Auto Range/Manual Range /RMS  √ Band (Hz)  45Hz~400Hz NCV/Continuity buzzer  √ Working cycle 0.1%~99.9% √ Diode  Around 3V LPF/LoZ (ACV)  √ Analog bar  √